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The major stimulus for release of parathyroid hormone is - ANSWER humoral The anterior pituitary secretes all but A. antidiuretic hormone B. growth hormone C. gonadotropins D. TSH - ANSWER Antidiuretic hormone A hormone not involved in glucose metabolism is - ANSWER Aldosterone Parathyroid hormone - ANSWER demineralizes bone and raises blood calcium levels Growth hormone - ANSWER Important anabolic hormone; many of its effects mediated by
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The major stimulus for release of parathyroid hormone is - ANSWER humoral The anterior pituitary secretes all but A. antidiuretic hormone B. growth hormone C. gonadotropins D. TSH - ANSWER Antidiuretic hormone A hormone not involved in glucose metabolism is - ANSWER Aldosterone Parathyroid hormone - ANSWER demineralizes bone and raises blood calcium levels Growth hormone - ANSWER Important anabolic hormone; many of its effects mediated by IGFs Aldosterone and antidiuretic hormone - ANSWER Involved in water balance; cause the kidneys to conserve water Prolactin - ANSWER Stimulates milk production Luteinizing hormone - ANSWER Tropic hormone that stimulates the gonads to secrete sex hormones Oxytocin - ANSWER Increases uterine contractions during birth T4 and T3 - ANSWER Major metabolic hormones of the body Aldosterone - ANSWER Causes reabsorption of sodium ions by the kidneys TSH - ANSWER Tropic hormone that stimulates the thyroid gland to secrete thyroid hormone Antidiuretic hormone and oxytocin - ANSWER Secreted by the neurohypophysis A hypodermic injection of epinephrine would - ANSWER Increase heart rate, increase blood pressure, dilate the bronchi, and decrease peristalsis Testosterone is to the male as what hormone is to the female? - ANSWER Estrogen
If anterior pituitary secretion is deficient in a growing child, the child will - ANSWER Become a dwarf but have fairly normal body proportions If there is adequate carbohydrate intake, secretion of insulin results in - ANSWER Lower blood glucose levels, increased cell utilization of glucose, and storage of glycogen Hormones.. - ANSWER are carried to all parts of the body in blood Some hormones act by - ANSWER Increasing the synthesis of enzymes, converting an inactive enzyme into an active enzyme and affecting only specific target organs Absence of thyroxine would result in - ANSWER Depression of the CNS and lethargy Chromaffin cells are found in the - ANSWER Adrenal gland Atrial natriuretic peptide secreted by the heart has exactly the opposite function of this hormone secreted by the zone glomerulosa: - ANSWER Aldosterone The blood volume in adults averages approximately - ANSWER 5 L The hormonal stimulus that prompts red blood cell formation is - ANSWER Erythropoietin All of the following are true of RBCs except A. biconcave disc shape B. Life span of approx. 120 days C. Contain hemoglobin D. Contain nuclei - ANSWER Contain nuclei The most numerous WBC is the - ANSWER Neutrophil Blood proteins play an important part in - ANSWER Blood clotting, immunity, and maintenance of blood volume The white blood cell that releases histamine and other inflammatory chemicals is the - ANSWER Basophil The blood cell that can become an antibody-secreting cell is the - ANSWER Lymphocyte Which of the following does not promote multiple steps in the clotting pathway? A. PF
Which statement does not accurately describe veins? A. They have less elastic tissue and smooth muscle than arteries B. They contain more fibrous tissue than arteries C. Most veins in the extremities have valves D. Thy always carry deoxygenated blood - ANSWER They always carry deoxygenated blood Smooth muscle in the blood vessel wall - ANSWER Is mostly circularly arranged Peripheral resistance.. - ANSWER Is inversely related to the diameter of the arterioles Which of the following can lead to decreased venous return of blood to the heart? - ANSWER Damage to the venous valves Arterial blood pressure increases in response to - ANSWER Increasing stroke volume, increasing heart rate, arteriosclerosis and rising blood volume Which of the following would not result in the dilation of the feeder arterioles and opening of the pre capillary sphincters in systemic capillary beds? - ANSWER A local increase in pH The structure of a capillary wall differs from that of a vein or an artery because - ANSWER It has a single tunic-only the tunica intima The baroreceptors in the carotid sinus and aortic arch are sensitive to - ANSWER Changes in arterial pressure
The myocardium receives its blood supply directly from - ANSWER The coronary arteries Blood flow in the capillaries is steady despite the rhythmic pumping of the heart because of the - ANSWER Elasticity of the large arteries Tracing the blood from the heart to the right hand, we find that blood leaves the heart and passes through the aorta, the right subclavian artery, the axillary and brachial arteries, and through either the radial or ulna artery to arrive at the hand. Which artery is missing from this sequence? - ANSWER Brachiocephalic Which of the following do not drain directly into the superior vena cava? - ANSWER Inferior mesenteric vein In atherosclerosis, which layer of the vessel wall thickens most? - ANSWER Tunica intima Suppose that at a given point along a capillary, the following forces exist: capillary hydrostatic pressure=30 mm Hg, interstitial fluid hydrostatic pressure=0 mm Hg, capillary colloid osmotic pressure=2 mm Hg. The net filtration pressure at this point in the capillary is